Professor Martin Foster
PhD, MSc, BEng
School of Electrical and Electronic Engineering
Professor of Energy Storage & Conversion
Theme Lead for Power Devices and Systems
m.p.foster@sheffield.ac.uk
+44 114 222 5392
+44 114 222 5392
Full contact details
Professor Martin Foster
School of Electrical and Electronic Engineering
School of Electrical and Electronic Engineering
- Profile
-
I received BEng, MSc and PhD degrees from Sheffield in 1998, 2000 & 2003 respectively. I was appointed lecturer in 2003 and since this time undertaken research in power electronic energy conversion and battery management systems. In 2016 I was made Professor of Energy Storage and Conversion. My research interests span across the field of power electronic energy conversion, machine drives systems, thermal modelling & management, battery characterisation & health motoring and grid-connected energy storage.
Energy storage and applications form a large part of my research activities and I have involved in a number of EPSRC sponsored research projects including “FEVER: Future Electric Vehicle Energy networks supporting Renewables” which aims to develop off-grid EV charging stations. Past projects include establishing the Willenhall Energy Storage Systems, a 2 MW, 1 MWh grid connected lithium titanate battery energy storage research facility and “TransEnergy:Road to Rail Exchange” which investigated the use of lineside electrical energy storage applications on railway networks. I am a founder member of Centre for Research in Electrical Energy Storage and Applications covering many aspects of battery energy storage from pack design to EV battery charging.
Power electronics research includes multilevel converters, gate drivers, magnetics design and thermal management. Significant EPSRC sponsored projects include “FPET: Framework for designing piezoelectric resonant power supplies” in which developed mathematical models and design algorithms for piezoelectric devices, resonant power supplies and controllers for achieving soft-switching and voltage regulation; “Targeted waveform enhanced plasma microreactor: Engineering Chemistry at the Interface of Microbubbles” developing high-voltage power supplies and controllers for plasma chemistry and “A New Partnership in Offshore Wind: Siemens Wind Power Prosperity Partnership” looking at improving wind power generation technologies.
I work closely with industry and have been involved in many Innovate UK sponsored project including EV power electronics with Nissan, power tool machines and drives, induction sealing for food products, architectural lighting.
- Qualifications
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- PhD, University of Sheffield 2003
- MSc(Eng) (Control Systems), University of Sheffield 2000
- BEng (Electronic Engineering), University of Sheffield 1998
- Research interests
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- Resonant power supplies
- Piezoelectric transformers (PTs)
- Power electronics packaging and thermal management
- Multilevel power converters
- Battery management technologies
- Publications
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Journal articles
- Model-based Luenberger state observer for detecting interturn short-circuits in PM machines. IEEE Transactions on Transportation Electrification. View this article in WRRO
- Novel generic fault model considering fundamental and PWM current components of PM machines with inter-turn short-circuit. IEEE Transactions on Power Electronics. View this article in WRRO
- A Novel PWM Strategy Capable to Operate in Overmodulation Range with Low Switching-to-Fundamental Frequency Ratio. IEEE Transactions on Transportation Electrification, 1-1.
- A Gate Driver-Level Isolated Monitoring Technique for Gate Oxide Degradation in Silicon Carbide Power MOSFETs. IEEE Transactions on Power Electronics, 1-12.
- Soft switching voltage regulation for inductorless piezoelectric transformers: a cyclic mode analysis. IEEE Transactions on Power Electronics.
- Fully-integrated Transformer with Asymmetric Primary and Secondary Leakage Inductances for a Bidirectional Resonant Converter. IEEE Transactions on Industry Applications, 1-11.
- Real-Time Comprehensive Condition Monitoring Technique for SiC MOSFET-Based Inverters in EV Applications. Transportation Research Procedia, 70, 380-387.
- Gate oxide degradation condition monitoring technique for high-frequency applications of silicon carbide power MOSFETs. IEEE Transactions on Power Electronics, 38(1), 1079-1091.
- Electrical modelling of a metro system. Electric Power Systems Research, 213, 108680-108680.
- Inserted-shunt integrated planar transformer with low secondary leakage inductance for LLC resonant converters. IEEE Transactions on Industrial Electronics. View this article in WRRO
- Improved sensorless control method and asymmetric phase resistances determination for permanent magnet synchronous machines. IEEE Transactions on Industry Applications, 1-1.
- A Position Error Correction Method for Sensorless Control of Dual Three-Phase Permanent Magnet Synchronous Machines. IEEE Transactions on Industry Applications.
- Fully-integrated solid shunt planar transformer for LLC resonant converters. IEEE Open Journal of Power Electronics. View this article in WRRO
- High-frequency non-invasive magnetic field-based condition monitoring of SiC power MOSFET modules. Energies, 14(20).
- Fully-integrated planar transformer with a segmental shunt for LLC resonant converters. IEEE Transactions on Industrial Electronics. View this article in WRRO
- Evaluation of silicon MOSFETs and GaN HEMTs in soft‐switched and hard‐switched DC‐DC boost converters for domestic PV applications. IET Power Electronics.
- Single‐active switch high‐voltage gain DC–DC converter using a non‐coupled inductor. IET Power Electronics, 14(3), 492-502.
- Generalized Predictive DC-Link Voltage Control for Grid-Connected Converter. IEEE Journal of Emerging and Selected Topics in Power Electronics, 1-1.
- An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine with Parameter Mismatch. IEEE Access, 9, 135708-135722.
- Study on noise and disturbance issues of generalized predictive speed control for permanent magnet synchronous machines. IET Electric Power Applications, 15(1), 63-78.
- Suppressing leakage current for cascaded H-bridge inverters in renewable energy and storage systems. IEEE Transactions on Industrial Electronics.
- Modelling of phase-shift modulated bidirectional CLLC resonant converter. IET Power Electronics, 13(12), 2628-2637.
- Performance Investigation of Consequent-Pole PM Machines with E-core and C-core Modular Stators. IEEE Transactions on Energy Conversion, 1-1. View this article in WRRO
- Influence of spurious modes on the efficiency of piezoelectric transformers : a sensitivity analysis. IEEE Transactions on Power Electronics. View this article in WRRO
- Multivariable Generalized Predictive Control with Measurement Noise Rejection and Speed Ripple Mitigation for PMSM Drives. IET Power Electronics.
- A transformerless single-phase multilevel converter for grid-tie renewable energy systems. Energy Reports, 6, 70-75.
- Scaling effect on electromagnetic performance of surface mounted permanent magnet Vernier machine. IEEE Transactions on Magnetics. View this article in WRRO
- Resonant current estimation and phase-locked loop feedback design for piezoelectric transformer-based power supplies. IEEE Transactions on Power Electronics. View this article in WRRO
- A low cost, rapid impedance measurement technique suitable for Li-ion health diagnosis in battery energy storage systems. International Journal of Smart Grid and Clean Energy, 9(2), 346-356. View this article in WRRO
- Equivalent circuit parameter extraction of low-capacitance high-damping PTs. Electronics Letters. View this article in WRRO
- A Simple Sensorless Position Error Correction Method for Dual Three-Phase Permanent Magnet Synchronous Machines. IEEE Transactions on Energy Conversion, 1-1.
- Using power factor to limit the impact of energy storage on distribution network voltage. International Journal of Smart Grid and Clean Energy, 727-736.
- Practical observations of loss-of-mains nuisance tripping of fast acting energy storage. International Journal of Smart Grid and Clean Energy, 473-484.
- PLL controller for achieving zero-voltage switching (ZVS) in inductorless half-bridge drive piezoelectric transformer resonant power supplies. Journal of Engineering, 2019(17), 3639-3642. View this article in WRRO
- Comparative investigation of stator-mounted permanent magnet machines under fault conditions. The Journal of Engineering, 2019(17), 4241-4246. View this article in WRRO
- Quantitative Power Loss Analysis and Optimisation in Nth-order Low Voltage Multilevel Converters. IET Power Electronics. View this article in WRRO
- Performance comparison between consequent-pole and inset modular permanent magnet machines. The Journal of Engineering, 2019(17), 3951-3955. View this article in WRRO
- Automated design tools for piezoelectric transformer-based power supplies. The Journal of Engineering, 2019(17), 4163-4166. View this article in WRRO
- Electrical modelling of a DC railway system with multiple trains. Energies, 11(11). View this article in WRRO
- Combined Multi-Physics Model of Switched Flux PM Machines under Fault Operations. IEEE Transactions on Industrial Electronics. View this article in WRRO
- A unique pulse width modulation to reduce leakage current for cascaded H-bridge inverters in PV and battery energy storage applications. Energy Procedia, 151, 84-90. View this article in WRRO
- A Battery Energy Management Strategy for U.K. Enhanced Frequency Response and Triad Avoidance. IEEE Transactions on Industrial Electronics, 65(12), 9509-9517.
- Demagnetization Withstand Capability Enhancement of Surface Mounted PM Machines Using Stator Modularity. IEEE Transactions on Industry Applications. View this article in WRRO
- On the impact of current generation commercial gallium nitride power transistors on power converter loss. ELECTRONICS LETTERS, 53(22), 1487-1488. View this article in WRRO
- Novel Dual-Phase-Shift Control With Bidirectional Inner Phase Shifts for a Dual-Active-Bridge Converter Having Low Surge Current and Stable Power Control. IEEE Transactions on Power Electronics, 32(5), 4095-4106.
- Real-time temperature estimation in a multiple device power electronics system subject to dynamic cooling. IEEE Transactions on Power Electronics, 31(4), 2709-2719. View this article in WRRO
- Critical Design Criterion for Achieving Zero Voltage Switching in Inductorless Half-Bridge-Driven Piezoelectric-Transformer-Based Power Supplies. IEEE Transactions on Power Electronics, 31(7), 5057-5066.
- Measurement and Characterization Technique for Real-Time Die Temperature Prediction of MOSFET-Based Power Electronics. IEEE Transactions on Power Electronics, 31(6), 4378-4388. View this article in WRRO
- Real-Time Prediction of Power Electronic Device Temperatures Using PRBS-Generated Frequency-Domain Thermal Cross Coupling Characteristics. IEEE Transactions on Power Electronics, 30(6), 2950-2961. View this article in WRRO
- Modular Permanent-Magnet Machines With Alternate Teeth Having Tooth Tips. IEEE Transactions on Industrial Electronics, 62(10), 6120-6130. View this article in WRRO
- Investigation on Operational Envelops and Efficiency Maps of Electrically Excited Machines for Electrical Vehicle Applications. IEEE Transactions on Magnetics, 51(4), 1-10.
- Modified switching-table strategy for reduction of current harmonics in direct torque controlled dual-three-phase permanent magnet synchronous machine drives. IET Electric Power Applications, 9(1), 10-19. View this article in WRRO
- Spatially Resolved Measurements of Magnetic Fields Applied to Current Distribution Problems in Batteries. IEEE Transactions on Instrumentation and Measurement, 64(4), 951-958. View this article in WRRO
- Iron Loss Calculation in Permanent Magnet Machines Under Unconventional Operations. IEEE Transactions on Magnetics, 50(11).
- Improved bandwidth and noise resilience in thermal impedance spectroscopy by mixing PRBS signals. IEEE Transactions on Power Electronics, 29(9), 4817-4828.
- Estimation of Transportation Battery Second Life for Use in Electricity Grid Systems. IEEE Transactions on Sustainable Energy, 3(5), 795-803.
- Analysis and Design of LLC Resonant Converters With Capacitor–Diode Clamp Current Limiting. IEEE Transactions on Power Electronics, 30(3), 1345-1355.
- Influence of Flux Gaps on Electromagnetic Performance of Novel Modular PM Machines. IEEE Transactions on Energy Conversion, 29(3), 716-726.
- Comparative Studies of Modular and Unequal Tooth PM Machines Either With or Without Tooth Tips. IEEE Transactions on Magnetics, 50(7), 1-10.
- Required Cauer network order for modelling of thermal transfer impedance. Electronics Letters, 50(4), 260-262.
- Experimental investigation of a Recursive Modelling MPC system for space heating within an occupied domestic dwelling. Building and Environment, 74, 356-367.
- Experimental investigation of a Recursive Modelling MPC system for space heating within an occupied domestic dwelling. Building and Environment, 72, 356-367.
- Direct torque control of permanent magnet brushless AC drive with single-phase open-circuit fault accounting for influence of inverter voltage drop. IET Electric Power Applications, 7(5), 369-380. View this article in WRRO
- A recursive modelling technique applied to the model predictive control of fluid filled heat emitters. Building and Environment, 62, 33-44.
- Minimum gain identifiable when pseudorandom binary sequences are used for system identification in noisy conditions. ELECTRONICS LETTERS, 49(22), 1388-1389.
- Active current ripple cancellation in parallel connected buck converter modules. IET Power Electronics, 6(4), 721-731.
- Predicting the zero-voltage switching profiles of half-bridge driven inductor-less piezoelectric transformer-based inverters. IET Power Electronics, 5(7), 1068-1073.
- Analysis of inductorless zero-voltage-switching piezoelectric transformer-based converters. IEEE Transactions on Power Electronics, 27(5), 2471-2483.
- Arbitrary waveform power controller for thermal measurements of semiconductor devices. Electronics Letters, 48(7), 400-402.
- Willenhall Energy Storage System: Europe's largest research-led lithium titanate battery. Engineering & Technology Reference, 1(1).
- Analysis of dual-output resonant power converters through use of linear load approximations. IEEE Transactions on Power Electronics, 27(9), 4051-4059.
- Modelling of VRLA batteries over operational temperature range using pseudo random binary sequences. Journal of Power Sources, 207, 56-59.
- Battery parameter identification with pseudo random binary sequence excitation (PRBS). Journal of Power Sources, 196(22), 9398-9406.
- Describing function model of series resonant inverter with current limiting diode-clamp. Electronics Letters, 47(25), 1363-1364.
- Influence and compensation of inverter voltage drop in direct torque-controlled four-switch three-phase PM brushless AC drives. IEEE Transactions on Power Electronics, 26(8), 2343-2357. View this article in WRRO
- Low-cost solar emulator for evaluation of maximum power point tracking methods. Electronics Letters, 47(3), 208-209.
- Hamel locus design of self-oscillating DC-DC resonant converters. IET Power Electronics, 3(1), 86-94.
- Compensation of nonlinearities in diode-clamped multilevel converters. IEEE Transactions on Industrial Electronics, 57(8), 2651-2658.
- Frequency reduction schemes for back-to-back connected, diode-clamped multilevel converters. IET Power Electronics, 3(1), 65-74.
- Analysis of CLL voltage-output resonant converters using describing functions. IEEE Transactions on Power Electronics, 23(4), 1772-1781.
- Self-oscillating control methods for the LCC current-output resonant converter. IEEE Transactions on Power Electronics, 23(4), 1973-1986.
- Analysis and control of dual-output LCLC resonant converters with significant leakage inductance. IEEE Transactions on Power Electronics, 23(4), 1724-1732. View this article in WRRO
- Self-oscillating control of a DC-DC resonant converter using a hysteretic relay. ISAST Transactions on Electronics and Signal Processing, 2(3), 70-75.
- Normalized analysis and design of LCC resonant converters. IEEE Transactions on Power Electronics, 22(6), 2386-2402.
- Automated design of LCC resonant converters using a genetic algorithm employing a describing function equivalent circuit converter model. ISAST Transactions on Electronics and Signal Processing, 1(1), 33-37.
- Automated design of LCC resonant converters using a genetic algorithm employing a describing function equivalent circuit converter model. ISAST Transactions on Electronics and Signal Processing, 1(1), 33-37.
- Methodologies for the design of LCC voltage-output resonant converters. IEE Proceedings: Electric Power Applications, 153(4), 559-567.
- CLL resonant converters with output short-circuit protection. IEE Proceedings: Electric Power Applications, 152(5), 1296-1306.
- Design oriented analysis of fourth-order LCLC converters with capacitive output filter. IEE Proceedings: Electric Power Applications, 152(2), 310-322.
- Analysis of 4th-order LCLC resonant power converters. IEE Proceedings: Electric Power Applications, 151(2), 169-181.
- Analysis of voltage output LCC resonant converters, including boost mode operation. IEE Proceedings: Electric Power Applications, 150(6), 673-679.
- Cyclic-averaging for high-speed analysis of resonant converters. IEEE Transactions on Power Electronics, 18(4), 985-993.
- High-speed analysis of resonant power converters. IEE Proceedings: Electric Power Applications, 150(1), 62-70.
- Stress analysis of fourth-order LLCC resonant converters. Electronics Letters, 38(24), 1585-1586.
- Erratum: State-variable modelling of LCC voltage-output resonant converters (Electronics Letters (2001) 37:17 (1065-1066)). Electronics Letters, 37(22), 1372.
- State-variable modelling of LCC voltage-output resonant converters. Electronics Letters, 37(17), 1065-1066.
- Planning a Hybrid Battery Energy Storage System for Supplying Electric Vehicle Charging Station Microgrids. Energies, 17(15), 3631-3631.
- Techno-Economic Planning of a Fully Renewable Energy-Based Autonomous Microgrid with Both Single and Hybrid Energy Storage Systems. Energies, 17(4), 788-788.
- Inductorless step-up piezoelectric resonator (SUPR) converter: a describing function analysis. IEEE Transactions on Power Electronics.
- Circuit simulator compatible model for the ring-dot piezoelectric transformer. Journal of Microelectromechanical Systems.
- Comparison of BSPT and PZT Piezoelectric Ceramic Transformers for High Temperature Power Supplies. Advanced Engineering Materials.
- Comparative Study of Dual PM Vernier Machines. World Electric Vehicle Journal, 12(1), 12-12.
Conference proceedings papers
- Selective harmonic generation for dielectric barrier discharge reactors. 13th International Conference on Power Electronics, Machines and Drives (PEMD 2024) (pp 576-581)
- Bidirectional inverting piezo resonator-based (BIPR) converter for cell balancing applications. 2023 IEEE Energy Conversion Congress and Exposition (ECCE) Proceedings (pp 195-201). Nashville, Tennessee. USA, 29 October 2023 - 29 October 2023. View this article in WRRO
- Predicting Energy Use of an Electric Vehicle using Vehicle Dashcam Telemetry Data. World Conference on Transport Research - WCTR 2023 Montreal, Canada, 17 July 2023 - 21 July 2023.
- Design and Analysis of a Voltage Controlled Current Source Gate Driver for an IGBT. PCIM Europe Conference Proceedings (pp 1114-1123)
- A Design Methodology for a CLLLC Bidirectional Resonant Converter with an Integrated Planar Transformer. PCIM Europe Conference Proceedings (pp 2411-2419)
- Investigation of using BSPT for ring-dot piezoelectric transformers for use in high-temperature resonant power supplies. imaps-Conferences, Vol. 2022(HiTEN). Oxford, 18 July 2022 - 18 July 2022.
- Resonant current estimation and phase-locked loop control system for inductorless step-up single piezo element-based (SUPRC) DC-DC converter. 48th Annual Conference of the Industrial Electronics Society IECON 2022 Conference. Brussels, Belgium, 17 October 2022 - 20 October 2022.
- Critical design criterion for inductorless H-bridge
driven piezoelectric-transformer-based power
supplies. 48th Annual Conference of the Industrial Electronics Society IECON 2022 Conference. Brussels, Belgium, 17 October 2022 - 20 October 2022.
- On the Effect of SiC Power MOSFET Gate Oxide Degradation in High Frequency Phase Leg-Based Applications. IEEE Energy Conversion Congress and Expo - ECCE 2022. Detroit, Michigan, USA, 9 October 2022 - 13 October 2022.
- Evaluation of Drain-Source Voltage in Switch Transient Time Intervals as
Gate Oxide Degradation Precursor of SiC Power MOSFETs. 24th European Conference on Power Electronics and Applications EPE'22 ECCE Europe. Hannover, Germany, 5 September 2022 - 9 September 2022.
- Analysis of Test Methods for Measurement of leakage and Magnetising Inductances in Integrated Transformers. 24th European Conference on Power Electronics and Applications EPE'22 ECCE Europe, 5 September 2022 - 9 September 2022.
- Investigation of using BSPT for ring-dot piezoelectric transformers for use in high-temperature resonant power supplies. imaps-Conferences. Oxford, 18 July 2022 - 20 July 2022.
- Resonant Current Estimation And Voltage Regulation For Piezoelectric Transformer-based Power Supply. Power Electronics, Machines and Drives (PEMD) 2022 View this article in WRRO
- Performance Of Pzt-based Piezoelectric Transformers For Use In High-temperature Converters. Power Electronics, Machines and Drives (PEMD) 2022 View this article in WRRO
- Parameterisation Methods For Piezoelecric Transformer Equivalent Circuit Models. Power Electronics, Machines and Drives (PEMD) 2022 View this article in WRRO
- Fully-integrated Transformer With Asymmetric Leakage Inductances for a Bidirectional Resonant Converter. Power Electronics, Machines and Drives (PEMD) 2022 View this article in WRRO
- Cyclic-mode Modelling Of Class EF/2 inverters Featuring a Piezoelectric Resonator As The Auxiliary Network. Power Electronics, Machines and Drives (PEMD) 2022 View this article in WRRO
- Package-related degradation condition monitoring of SiC power MOSFETs using current distribution anomaly detection. 11th International Conference on Power Electronics, Machines and Drives (PEMD 2022)
- RadPTDesigner: a program for designing radial mode piezoelectric transformers for inductorless inverters. Proceedings of 2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe). Ghent, Belgium, 6 September 2021 - 10 September 2021.
- Design and analysis of a fully-integrated planar transformer for LCLC resonant converters. Proceedings of 2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe). Ghent, Belgium, 6 September 2021 - 10 September 2021.
- A Position Error Correction Method for Sensorless Control of Dual Three-Phase Permanent Magnet Synchronous Machines. 2021 IEEE International Electric Machines & Drives Conference (IEMDC), 17 May 2021 - 20 May 2021.
- Novel Liquid Cooling Technology for Modular Consequent-Pole PM Machines. 2021 IEEE International Electric Machines & Drives Conference (IEMDC), 17 May 2021 - 20 May 2021.
- Matlab-based High-Performance Electric Motorbike Energy Model, Utilising Video Data. 2021 Sixteenth International Conference on Ecological Vehicles and Renewable Energies (EVER), 5 May 2021 - 7 May 2021.
- Dashcam Video-Driven, Route Distinctive Energy Consumption Pre-Evaluation for Electrifying Public Services Fleets. 2021 Sixteenth International Conference on Ecological Vehicles and Renewable Energies (EVER), 5 May 2021 - 7 May 2021.
- Sensorless control for permanent-magnet synchronous machine drives considering resistance asymmetry. IET Power Electronics Machines and Drives Conference, 15 December 2020 - 17 December 2020.
- Output voltage regulation for piezoelectric transformer-based resonant power supplies using phaselocked loop control. IET Power Electronics Machines and Drives Conference, 15 December 2020 - 17 December 2020.
- Multivariable generalized predictive speed control for permanent magnet synchronous machine with enhanced luenberger speed observer. IET Power Electronics Machines and Drives Conference, 15 December 2020 - 17 December 2020.
- A large-scale battery energy storage system simulation tool for studying cell variation. IET Power Electronics Machines and Drives Conference, 15 December 2020 - 17 December 2020.
- Comparative evaluation of Si MOSFET-based soft switching DC-DC converters and GaN HEMT-based hard switching DC-DC converters. IET Power Electronics Machines and Drives Conference, 15 December 2020 - 17 December 2020.
- Impact of magnetic coupling in transverse flux permanent magnet machine for wind power application. IET Power Electronics Machines and Drives Conference, 15 December 2020 - 15 December 2020.
- Comparative Study of Parameter Mismatch on Different Model Predictive Controls for PMSM Drives. 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), 29 November 2020 - 2 December 2020.
- An Online Failure Assessment Approach for SiC-based MOSFET Power Modules Using Iterative Condition Monitoring Technique. 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), 9 November 2020 - 12 November 2020.
- Analysis, Design and Modelling of Two Fully- Integrated Transformers with Segmental Magnetic Shunt for LLC Resonant Converters. IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, 18 October 2020 - 21 October 2020.
- Improved Cooling in Modular Consequent Pole PM Machine Utilizing Flux Gaps. IEEE-ECCE
- Improved Sensorless Control Method for Permanent Magnet Synchronous Machines Considering Resistance Asymmetry and Temperature Variation. 2020 IEEE Energy Conversion Congress and Exposition (ECCE), 11 October 2020 - 15 October 2020.
- A Low Cost, Rapid Impedance Measurement Technique Suitable for Li-ion Health Diagnosis in Battery Energy Storage Systems. International Conference on Smart Grids and Energy, 27 April 2019 - 30 May 2019.
- Adaptive control method to manage SOC for energy storage in DC electric railways. IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (pp 261-266). Lisbon, Portugal, 14 October 2019 - 17 October 2019. View this article in WRRO
- Modelling of bidirectional CLLC resonant converter operating under frequency modulation. Proceedings of 2019 IEEE Energy Conversion Congress and Exposition (ECCE) (pp 3750-3757). Baltimore, MD, USA, 29 September 2019 - 3 October 2019.
- Suppressing Leakage Current for Cascaded H-bridge Converters in Grid-Tie Renewable Energy Systems. 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), 3 September 2019 - 5 September 2019. View this article in WRRO
- Equivalent Circuit Parameter Extraction Methods for Piezoelectric Transformers. 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), 3 September 2019 - 5 September 2019. View this article in WRRO
- Online electrolytic capacitor prognosis system for PWM drives. 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), 3 September 2019 - 5 September 2019. View this article in WRRO
- Influence of Demagnetization on Selecting the Optimum Slot/Pole Number Combination for 3MW Surface Mounted Permanent Magnet Vernier Machine. 2019 22nd International Conference on Electrical Machines and Systems (ICEMS), 11 August 2019 - 14 August 2019.
- Novel Control Method for Improving Energy Efficiency of DC Electric Railways. 2019 IEEE 15th International Conference on Control and Automation (ICCA), 16 July 2019 - 19 July 2019.
- State-variable and cyclic-averaging analysis of bidirectional CLLC resonant converters. IET PEMD 2018, Vol. 2019(17) (pp 4364-4368) View this article in WRRO
- Coordinated Dispatch Performance of AC Grid-Connected Energy Storage Systems. 2019 IEEE Milan PowerTech, 23 June 2019 - 27 June 2019.
- Investigation of Integer/Fractional Slot Consequent Pole PM Machines with Different Rotor Structures. 2019 IEEE International Electric Machines & Drives Conference (IEMDC), 12 May 2019 - 15 May 2019.
- Study of Manufacturing Tolerance of Modular Permanent Magnet Machines: Segment Radial Displacement. 2019 IEEE International Electric Machines & Drives Conference (IEMDC), 12 May 2019 - 15 May 2019.
- Comparative Studies of Fractional/Integer-Slot Consequent Pole Permanent Magnet Machines. 2019 IEEE International Electric Machines & Drives Conference (IEMDC), 12 May 2019 - 15 May 2019.
- Influence of Demagnetization on Selecting the Optimum Slot/Pole Number Combination for 3MW Surface Mounted Permanent Magnet Vernier Machine. 2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2019) (pp 5317-5322)
- An Investigation into the Thermal Benefits of Multilevel Converters. IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 21 October 2018 - 23 October 2018. View this article in WRRO
- Development of an Electrical Model for Multiple Trains Running on a DC 4th Rail Track. IEEE, 12 June 2018 - 15 June 2018. View this article in WRRO
- An Experimental Investigation of MOSFET Intrisic Body Diode Performance. 2018 IEEE 27th International Symposium on Industrial Electronics (ISIE) (pp 341-345), 13 June 2018 - 15 June 2018. View this article in WRRO
- A forecasting battery state of charge management strategy for frequency response in the UK system. 2018 IEEE International Conference on Industrial Technology (ICIT), 20 February 2018 - 22 February 2018.
- Parameterisation and online states estimation of high-energy lithium-titanate cells. IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 29 October 2017 - 1 November 2017. View this article in WRRO
- Arc-flash calculation comparison for energy storage systems. 2017 52nd International Universities Power Engineering Conference (UPEC), 28 August 2017 - 31 August 2017.
- Switching loss optimisation of cascaded H-bridge converters for bidirectional grid-tie battery energy storage systems. IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 29 October 2017 - 1 November 2017. View this article in WRRO
- Thermal Analysis Using 2-Dimensional Impedance Spectroscopy and Pseudorandom Binary Sequences. IWIS 2016
- Observations on Changes to Electrolytic Capacitor Electrical Properties Caused by Gamma Irradiation. IWIS 2016, 26 September 2016 - 28 September 2016. View this article in WRRO
- Measurement of Electrical Parameters of Electrolytic Capacitors Using Real-World Drive Waveforms for State-of-Health Determination. IWIS 2016, 26 September 2016 - 28 September 2016. View this article in WRRO
- Examining contrasting excitation modes within battery characterisation using maximum length sequences. PCIM Europe 2016; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (pp 2090-2097) View this article in WRRO
- Design procedure for pot-core integrated magnetic component. PCIM Europe 2016; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (pp 1455-1462) View this article in WRRO
- Multi-stage LLC resonant converters designed for wide output voltage ranges. PCIM Europe 2016; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (pp 1769-1776) View this article in WRRO
- Electrolytic capacitor age estimation using PRBS-based Techniques. PCIM Europe 2016; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (pp 1095-1102) View this article in WRRO
- Battery energy storage systems for the electricity grid: UK research facilities. 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016) View this article in WRRO
- Repurposing ATX Power Supply for Battery Charging Applications. 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016) View this article in WRRO
- Performance evaluation of SiC MOSFET in 5-level single phase converter. 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016) View this article in WRRO
- Battery charger with a capacitor-diode clamped LLC resonant converter. 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016) View this article in WRRO
- Minimum charge-recovery time control with parallel connected buck converters. 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016) View this article in WRRO
- Observation of electrolytic capacitor ageing behaviour for the purpose of prognostics. IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 23 October 2016 - 26 October 2016. View this article in WRRO
- A Model-based Predictive Current Controller for a back-to-back connected multilevel converter aerospace starter-generator. IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 23 October 2016 - 26 October 2016. View this article in WRRO
- Practical design considerations of cascaded hybrid battery storage systems. 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 8 September 2015 - 10 September 2015.
- Modelling the enhancement to the thermal performance of encapsulants using thermally conductive filler materials. PCIM Asia Conference Proceedings
- Comparison of electrically excited and interior permanent magnet machines for hybrid electric vehicle application. 2014 17th International Conference on Electrical Machines and Systems (ICEMS), 22 October 2014 - 25 October 2014.
- A low cost photovoltaic maximum power point tracking buck converter for cell phone charging applications. PCIM Europe Conference Proceedings (pp 643-650)
- Variable PWM step-size for modified Hill climbing MPPT PV converter. 7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
- An experimental evaluation of thermally conductive filler loaded encapsulant composites. 7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
- ATX power supply derived MPPT converter for cell phone charging applications in the developing world. 7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
- Computationally Efficient Method and Investigation of Operational Envelopes of Hybrid and Electrically Excited Machines. Ninth International Conference on Ecological Vehicles and Renewable Energies (EVER). Monte-Carlo, 25 March 2014.
- Dynamic charge acceptance measurement and modelling in ultrabatteries. International Conference on Lead-Acid Batteries, LABAT (pp 231-234)
- Variable PWM step-size for modified Hill climbing MPPT PV converter. 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
- Computationally efficient method and investigation of operational envelopes of hybrid and electrically excited machines. 2014 Ninth International Conference on Ecological Vehicles and Renewable Energies (EVER), 25 March 2014 - 27 March 2014.
- An experimental evaluation of thermally conductive filler loaded encapsulant composites. 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
- ATX power supply derived MPPT converter for cell phone charging applications in the developing world. 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
- Real-time temperature monitoring and control for power electronic systems under variable active cooling by characterisation of device thermal transfer impedance. 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
- Viability of “second-life” use of electric and hybridelectric vehicle battery packs. IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 10 November 2013 - 13 November 2013.
- Prediction of device temperatures in an electric vehicle battery charger system by analysis of device thermal cross-coupling. 15th European Conference on Power Electronics and Applications (EPE). Lille, France, 3 September 2013 - 5 September 2013.
- A robust state-of-function battery modelling technique for Li-ion battery chemistries developed for EV/HEV vehicles. PCIM Asia 2013, Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. Shanghai, China, 17 June 2013 - 19 June 2013.
- A comparative study of on-board bidirectional chargers for electric vehicles to support vehicle-to-grid power transfer. 2013 IEEE 10th International Conference on Power Electronics and Drive Systems (PEDS) (pp 639-644). Kitakyushu, Japan, 22 April 2013 - 25 April 2013.
- Repurposing of ATX computer power supplies for PV applications in developing countries. 2013 International Conference on Renewable Energy Research and Applications (ICRERA), 20 October 2013 - 23 October 2013.
- Second life of computer power supplies in PV battery charging applications. 2013 15th European Conference on Power Electronics and Applications (EPE), 2 September 2013 - 6 September 2013.
- Bipolar mode pseudo random binary sequence excitation for parameter estimation in lead-acid batteries. International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. Asia
- Design of thermally integrated planar inductor utilising aluminium oxide as a winding insulation material. Power Control and Intelligent Motion (PCIM) 2013. Nuremberg, 13 May 2013 - 16 May 2013.
- Application of maximum length sequences to battery charge programming for parameter estimation in lead-acid batteries. Power Control and Intelligent Motion (PCIM) 2013. Nuremberg, 13 May 2013 - 16 May 2013.
- Erratum for ‘Arbitrary waveform power controller for thermal measurements of semiconductor devices’. Electronics Letters, Vol. 48(11) (pp 665)
- Nonlinear effects in piezoelectric transformers explained by thermal-electric model based on a hypothesis of self-heating. 38th Annual Conference of the IEEE Industrial Electronics Society. Montreal, Canada
- A capacitive level shifter for high voltage (2.5kV). 2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC), 3 June 2012 - 7 June 2012.
- Nonlinear effects in piezoelectric transformers explained by thermal-electric model based on a hypothesis of self-heating. IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 25 October 2012 - 28 October 2012.
- Maximum power point tracking converters and their issues. All-Energy 2012 Exhibition and Conference. Aberdeen, UK
- Impact of ripple current on the average output power of solar cells. All-Energy 2012 Exhibition and Conference. Aberdeen, UK
- Modelling of VRLA batteries over operational temperature range using pseudo random binary sequences. Lead-Acid Battery Conference. Bulgaria
- A review of electrical energy storage (EES) technologies for stationary grid applications. All-Energy 2012 Exhibition and Conference. Aberdeen, UK
- State indicators for lead-acid batteries utilising pseudo random binary sequences. All-Energy 2012 Exhibition and Conference. Aberdeen, UK
- Optimum look-up table for reduction of current harmonics in direct torque controlled dual three-phase permanent magnet brushless AC machine drives. IET Power Electronics, Machines and Drives 2012. Bristol, UK
- Impact of ripple current on the average output power of solar cells. IET Power Electronics, Machines and Drives Conference. Bristol, UK
- New design approach for higher energy efficiency with parallel converter. IET Power Electronics, Machines and Drives Conference. Bristol, UK
- Reduction of passive filtering in aerospace starter/generator systems using a multilevel converter with predictive current control. IET Power Electronics, Machines and Drives Conference. Bristol, UK, 27 March 2012 - 29 March 2012.
- Online optimised stator flux reference approximation for maximum torque per ampere operation of interior permanent magnet machine drive under direct torque control. IET Power Electronics, Machines and Drives 2012. Bristol, UK
- The use of virtual flux estimation in aerospace starter-generator systems. SPEEDAM 2012 - 21st International Symposium on Power Electronics, Electrical Drives, Automation and Motion (pp 426-431)
- EV/HEV Li-ion battery modelling and state-of-function determination. SPEEDAM 2012 - 21st International Symposium on Power Electronics, Electrical Drives, Automation and Motion (pp 353-358)
- The development of a solar photovoltaic test rig for the analysis of MPPT algorithms and power quality of attached converters. All-Energy 2011 Exhibition and Conference. Aberdeen, UK
- Simulation of a scheduling control scheme for domestic central heating systems in the UK. 19th IASTED International Conference on Applied Simulation and Modelling (ASM 2011). Crete, 22 June 2011 - 24 June 2011.
- A dynamic model of the LLC resonant converter for control response prediction. PCIM Europe. Nuremberg, Germany
- State-of-charge indicators for VRLA batteries utilising pseudo random binary sequences (PRBS). PCIM Europe. Nuremberg, Germany
- Phase-locked loop (PLL) pulse-width modulator (PWM) based controller for LLC resonant converters. PCIM Europe. Nuremberg Germany
- Back-to-back connected multilevel inverters for aerospace starter-generator applications. PCIM Europe. Nuremberg, Germany
- Utilizing existing aircraft wound field generators for starter-generators. 8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia (pp 691-696)
- State-of-function determination for EV/HEV battery packs. EVS 2010 - Sustainable Mobility Revolution: 25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exhibition
- MLS testing of VRLA batteries using pseudo random binary sequences (PRBS). 25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium. Shenzhen, China
- Multilevel cascaded H-bridge inverter with integrated battery management for alternative energy applications. 3rd Seminar EPE Wind Energy Chapter. Warwick, UK, 15 April 2010 - 16 April 2010.
- State-of-function determination for EV/HEV battery packs. 25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium & Exhibition. Shenzhen, China, 5 November 2010.
- Evaluation of thermally efficient mounting techniques for ferrite cores. 9th International Power and Energy Conference, IPEC 2010 (pp 323-327)
- VRLA battery parameter identification using pseudo random binary sequences (PRBS). IET Power Electronics, Machines and Drives Conference 2010(563 CP)
- Effect of inter-layer interface quality on electrical and thermal characteristics of IMS. IET Power Electronics, Machines and Drives Conference 2010(563 CP)
- Device temperature projection technique for IMS based systems. IET Power Electronics, Machines and Drives Conference 2010(563 CP)
- Comparative study of current vector control performance of alternate fault tolerant inverter topologies for three-phase PM brushless AC machine with one phase open-circuit fault. IET Conference Publications(563 CP)
- MLS testing of vrla batteries using Pseudo Random Binary Sequences (PRBS). EVS 2010 - Sustainable Mobility Revolution: 25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exhibition
- Low computational complexity observer based modelling techniques for device temperature prediction in IMS based systems. International Conference on Power Electronics and Drive Systems. Taipei, Taiwan
- Comparison between multilevel and classical 2-level inverters regarding stall torque improvements for driving brushless PM machines. 13th International European Power Electronics Conference. Barcelona, Spain
- Comparison between multilevel and classical 2-level inverters regarding stall torque improvements for driving brushless PM machines. PCIM Europe 2009. Nuremberg, Germany
- An automated design methodology for LLC resonant converters using a genetic algorithm. PCIM Europe 2009. Nuremberg, Germany
- System-wide temperature estimation for IMS based power electronics circuits. Proceedings of the International Conference on Power Electronics and Drive Systems (pp 615-618)
- Achieving ZVS in inductor-less half-bridge piezoelectric transformer based resonant converters. Proceedings of the International Conference on Power Electronics and Drive Systems (pp 446-451)
- A lumped equivalent circuit model for the radial mode piezoelectric transformer. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC (pp 1747-1753)
- A three-phase to single-phase matrix converter for high-frequency induction heating. 13th European Conference on Power Electronics and Applications, EPE '09
- On-line tuning of a feedback controller for a buck converter using a genetic algorithm. International Symposium on Power Electronics, Electrical Drives, Automation and Motion. Ischia, Italy
- A new switching scheme for reduced switching frequency and balanced capacitor voltages for back-to-back connected, diode- clamped multilevel converters. IET Conference Publications(538 CP) (pp 636-639)
- Phase locked loop (PLL) based self-oscillating controller for LCC resonant converters. IET Conference Publications(538 CP) (pp 446-450)
- A genetic algorithm for designing LCLC resonant converters. IET Conference Publications(538 CP) (pp 732-736)
- Integrated multilevel converter and battery management. SPEEDAM 2008 - International Symposium on Power Electronics, Electrical Drives, Automation and Motion (pp 756-759)
- Digitally controlled converter with an adaptive step size for maximum power point tracking for photovoltaic applications. IECON Proceedings (Industrial Electronics Conference) (pp 703-706)
- Characteristics of high-voltage capacitors when operating in high temperature environments. Proceedings - 2nd Electronics System-integration Technology Conference, ESTC (pp 423-426)
- A frequency-response-based characterisation methodology for piezoelectric transformers. Proceedings - 2nd Electronics System-integration Technology Conference, ESTC (pp 959-962)
- Hardware-in-the-loop tuning of a feedback controller for a buck converter using a GA. SPEEDAM 2008 - International Symposium on Power Electronics, Electrical Drives, Automation and Motion (pp 680-684)
- Rapid analysis & design methodologies of high-frequency LCLC resonant inverter as electrodeless fluorescent lamp ballast. 2007 INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS, VOLS 1-4 (pp 376-381)
- Rapid analysis & design methodologies of high- frequency LCLC resonant inverter as electrodeless fluorescent lamp ballast. Proceedings of the International Conference on Power Electronics and Drive Systems (pp 139-144)
- Analysis and control of dual-output LCLC resonant converters, and the impact of leakage inductance. Proceedings of the International Conference on Power Electronics and Drive Systems (pp 145-150)
- Analysis of self-oscillating DC-DC resonant power converters using a hysteretic relay. 2007 European Conference on Power Electronics and Applications, EPE
- State-of-the-art piezoelectric transformer technology. 2007 European Conference on Power Electronics and Applications, EPE
- A back to back multilevel converter for driving low inductance brushless AC machines. 2007 European Conference on Power Electronics and Applications, EPE
- Power-factor control of the LCC current-output resonant converter. 2007 European Conference on Power Electronics and Applications, EPE
- Design of an LCC current-output resonant converter for use as a constant current source. 2007 European Conference on Power Electronics and Applications, EPE
- A cascaded H-bridge BLDC drive incorporating battery management. 2007 European Conference on Power Electronics and Applications, EPE
- Modelling and regulation of dual-output LCLC resonant converters. IECON Proceedings (Industrial Electronics Conference) (pp 2130-2135)
- GA tuning of pitch controller for small scale MAVs. Proceedings of the WSEAS International Conference on Circuits, Systems, Electronics, Control and Signal Processing (pp 197-201)
- Comparison of single-phase matrix converter and H-bridge converter for radio frequency induction heating. 2007 European Conference on Power Electronics and Applications, EPE
- High power, unity power factor supply for plastic pipe welding applications. IECON Proceedings (Industrial Electronics Conference) (pp 1892-1895)
- Bandwidth-controlled steady-state design and analysis of a 3kW CLL resonant converter with rectified main output characteristics. International Conference on Electrical Machines and Systems, ICEMS. Nagasaki, Japan
- Single phase matrix converter for radio frequency induction heating. International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006, Vol. 2006 (pp 614-618)
- Digital control of dual-load LCLC resonant converters. 2005 European Conference on Power Electronics and Applications, Vol. 2005
- EKF-based output-voltage regulation of 3-order LCC resonant converters subject to load variations. 2005 European Conference on Power Electronics and Applications
- Rapid steady-state analysis of CLL resonant power converters. Proceedings of the IASTED International Conference on Circuits, Signals, and Systems (pp 520-525)
- State-variable modelling of CLL resonant converters. IEE Conference Publication, Vol. 1 (pp 214-219)
- Analysis & design of high-frequency LCLC resonant converters for electrode-less fluorescent lamp ballasts. IEE Conference Publication, Vol. 1 (pp 137-142)
- Observer based feedback control of 3rd order LCC resonant converters. European Power Electronics Conference CD-ROM Proceedings. Toulouse, France
- Review of modelling methodologies to facilitate rapid simulation of high order resonant converters. European Power Electronics Conference. Gratz, Austria
- Modelling and sizing sensitivity analysis of a fully renewable energy-based electric vehicle charging station microgrid. EVI: Charging Ahead Conference
- MLS TESTING OF VRLA BATTERIES USING PSEUDO RANDOM BINARY SEQUENCES (PRBS). World Electric Vehicle Journal, Vol. 4(2) (pp 405-413)
- A novel AC equivalent circuit for the CLL voltage-output resonant converter using describing functions. 9th International Conference on Electrical Machines and Systems. Nagasaki, Japan, November 2006.
- Effect of spurious resonant modes on the operation of radial mode piezoelectric transformers. PCIM Europe 2018; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (pp 1740-1747). Nuremberg, Germany, 5 June 2018 - 7 June 2018.
- Mixed PRBS technique for thermal impedance spectroscopy of power electronic systems. Power Control and Intelligent Motion (PCIM) 2013. Nuremberg, 13 May 2013 - 16 May 2013.
- Parallel buck converter with non-identical power module for improved transient efficiency. Power Control and Intelligent Motion (PCIM) 2013. Nuremberg, 13 May 2013 - 16 May 2013.
Presentations
- Investigation of using BSPT for ring-dot piezoelectric transformers for use in high-temperature resonant power supplies. Oxford.
- Model-based Luenberger state observer for detecting interturn short-circuits in PM machines. IEEE Transactions on Transportation Electrification. View this article in WRRO
- Research group
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Power Devices & Systems
- Teaching activities
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- EEE225 - Analogue and Digital Electronics
- EEE307 - Power Electronics
- Professional activities and memberships
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- IET